The National Basketball Association (NBA) Finals is the championship series to the NBA and the conclusion of its postseason. All Finals have been played in a best-of-seven format, and therefore are contested between the winners of their Eastern Conference and the Western Convention (formerly Divisions earlier 1970), except in 1950 when the Eastern Division winner confronted the winner between the Western and Central Division winners. From 1946 through 1949, once the league was known as the Basketball Association of America (BAA), the playoffs were a three-stage tournament in which both semifinal winners played in the finals.  the series’ team receives the Larry O’Brien Championship Trophy.
The present home-and-away format in the NBA Finals is 2–2–1–1–1 (the team with the better regular-season record plays on their home court in Games 1, 2, 5, and 7), which has been utilized at 1947–1948, 1950–1952, 1957–1970, 1972–1974, 1976–1977, 1979–1984, and 2014–gift. It was previously at two –3–2 format (the group with the better regular season record plays in their home court in Games 1, 2, 6, and 7) during 1949, 1953–1955, and 1985–2013, at a 1–1–1–1–1–1–1 structure throughout 1956 and 1971, and at a 1–2–2–1–1 format throughout 1975 and 1978. 
The Eastern Conference/Division directs the Western Conference/Division in series won (39–34). The defunct Central Division, when the then existing Eastern Division was updated as a convention in existence during the 1949 — 50 NBA season when the NBA was divided into three divisions and different from the Central Division created in 1970, won one championship. The Minneapolis/Los Angeles Lakers and the Boston Celtics possess almost half of those titles, having won a combined 33 of 73 championships. As of 2019, the defending champions are.
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